<div class="mst">
  <div class="msr">
    <nz-avatar [nzSize]="64" nzIcon="user"> </nz-avatar>
    <nz-avatar nzSize="large" nzIcon="user"> </nz-avatar>
    <nz-avatar nzSize="default" nzIcon="user"> </nz-avatar>
    <nz-avatar nzSize="small" nzIcon="user"> </nz-avatar>
  </div>
</div>

<div class="mst">
  <div class="msr">
    <nz-avatar nzIcon="user" nzShape="square" [nzSize]="64"> </nz-avatar>
    <nz-avatar nzIcon="user" nzShape="square" nzSize="large"> </nz-avatar>
    <nz-avatar nzIcon="user" nzShape="square" nzSize="default"> </nz-avatar>
    <nz-avatar nzIcon="user" nzShape="square" nzSize="small"> </nz-avatar>
  </div>
</div>
